sequencer: simplify root commit creation

Adapt try_to_commit() to create a new root commit rather than special
casing this in run_git_commit(). This significantly reduces the amount of
special case code for creating the root commit and reduces the number of
commit code paths we have to worry about.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood 2019-08-19 02:18:23 -07:00 committed by Junio C Hamano
parent a47ba3c777
commit b0a3186140

View File

@ -869,34 +869,6 @@ static char *get_author(const char *message)
return NULL;
}
/* Read author-script and return an ident line (author <email> timestamp) */
static const char *read_author_ident(struct strbuf *buf)
{
struct strbuf out = STRBUF_INIT;
char *name, *email, *date;
if (read_author_script(rebase_path_author_script(),
&name, &email, &date, 0))
return NULL;
/* validate date since fmt_ident() will die() on bad value */
if (parse_date(date, &out)){
warning(_("invalid date format '%s' in '%s'"),
date, rebase_path_author_script());
strbuf_release(&out);
return NULL;
}
strbuf_reset(&out);
strbuf_addstr(&out, fmt_ident(name, email, WANT_AUTHOR_IDENT, date, 0));
strbuf_swap(buf, &out);
strbuf_release(&out);
free(name);
free(email);
free(date);
return buf->buf;
}
static const char staged_changes_advice[] =
N_("you have staged changes in your working tree\n"
"If these changes are meant to be squashed into the previous commit, run:\n"
@ -954,45 +926,6 @@ static int run_git_commit(struct repository *r,
{
struct child_process cmd = CHILD_PROCESS_INIT;
if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) {
struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT;
const char *author = NULL;
struct object_id root_commit, *cache_tree_oid;
int res = 0;
if (is_rebase_i(opts)) {
author = read_author_ident(&script);
if (!author) {
strbuf_release(&script);
return -1;
}
}
if (!defmsg)
BUG("root commit without message");
if (!(cache_tree_oid = get_cache_tree_oid(r->index)))
res = -1;
if (!res)
res = strbuf_read_file(&msg, defmsg, 0);
if (res <= 0)
res = error_errno(_("could not read '%s'"), defmsg);
else
res = commit_tree(msg.buf, msg.len, cache_tree_oid,
NULL, &root_commit, author,
opts->gpg_sign);
strbuf_release(&msg);
strbuf_release(&script);
if (!res)
res = update_ref(NULL, "HEAD", &root_commit, NULL, 0,
UPDATE_REFS_MSG_ON_ERR);
return res < 0 ? error(_("writing root commit")) : 0;
}
cmd.git_cmd = 1;
if (is_rebase_i(opts) && read_env_script(&cmd.env_array)) {
@ -1376,7 +1309,7 @@ static int try_to_commit(struct repository *r,
struct object_id *oid)
{
struct object_id tree;
struct commit *current_head;
struct commit *current_head = NULL;
struct commit_list *parents = NULL;
struct commit_extra_header *extra = NULL;
struct strbuf err = STRBUF_INIT;
@ -1411,7 +1344,8 @@ static int try_to_commit(struct repository *r,
}
parents = copy_commit_list(current_head->parents);
extra = read_commit_extra_headers(current_head, exclude_gpgsig);
} else if (current_head) {
} else if (current_head &&
(!(flags & CREATE_ROOT_COMMIT) || (flags & AMEND_MSG))) {
commit_list_insert(current_head, &parents);
}
@ -1488,8 +1422,7 @@ static int do_commit(struct repository *r,
{
int res = 1;
if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG) &&
!(flags & CREATE_ROOT_COMMIT)) {
if (!(flags & EDIT_MSG) && !(flags & VERIFY_MSG)) {
struct object_id oid;
struct strbuf sb = STRBUF_INIT;